
import axios from 'axios'

export default function ajax(url = '', data = {}, type = 'GET') {
    return new Promise(function (resolve, reject) {
        let promise;

        if (type === 'GET') {
            // 准备url query 参数数据
            let dataStr = '' //数据拼接字符串
            Object.keys(data).forEach(key => {
                dataStr += key + '=' + data[key] + '&'
            })

            if (dataStr !== '') {
                dataStr = dataStr.substring(0, dataStr.lastIndexOf('&'));
                url = url + '?' + dataStr
            }
            // 发送get 请求
            promise = axios.get(url)
        } else {
            // 发送post 请求
            promise = axios.post(url, data)
        }



        promise.then(res => {
            resolve(res.data)
        }).catch(err => {
            reject(err)
        })


    })




}




